Well, Bill,
You asked a question, and I answered within all the parameters of that question. It's not my fault that your question was so open ended that I could lob a few nukes through all the loopholes you left in it.
Maybe you should set more specific criteria next time.
Next time, try thinking a little harder before you ask.
BTW, if you want to get a little more realistic, look up silver iodide. And then spend a week or two in Beijing when they need rain. Try to remember that you don't actually need to duck when the rockets explode.
Steve